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1. 发明授权

US06197424B1 Use of high temperature insulation for ceramic matrix composites in gas turbines 失效
标题翻译：在燃气轮机中使用高温绝缘陶瓷基复合材料
公开(公告)号：US06197424B1
公开(公告)日：2001-03-06
申请号：US09049369
申请日：1998-03-27
申请人： Jay Alan Morrison , Gary Brian Merrill , Evan McNeil Ludeman , Jay Edgar Lane
发明人： Jay Alan Morrison , Gary Brian Merrill , Evan McNeil Ludeman , Jay Edgar Lane
IPC分类号： B32B516
CPC分类号： F01D11/12 , C04B28/344 , C04B38/08 , C04B2111/00482 , C04B2111/28 , Y02T50/67 , Y02T50/672 , Y10T428/2982 , C04B14/30 , C04B14/301 , C04B38/0038
摘要： A ceramic composition for insulating components, made of ceramic matrix composites, of gas turbines is provided. The composition comprises a plurality of hollow oxide-based spheres of various dimensions, a phosphate binder, and at least one oxide filler powder, whereby the phosphate binder partially fills gaps between the spheres and the filler powders. The spheres are situated in the phosphate binder and the filler powders such that each sphere is in contact with at least one other sphere and the arrangement of spheres is such that the composition is dimensionally stable and chemically stable at a temperature of approximately 1600° C. A stationary vane of a gas turbine comprising the composition of the present invention bonded to the outer surface of the vane is provided. A combustor comprising the composition bonded to the inner surface of the combustor is provided. A transition duct comprising the insulating coating bonded to the inner surface of the transition is provided. Because of abradable properties of the composition, a gas turbine blade tip seal comprising the composition also is provided. The composition is bonded to the inside surface of a shroud so that a blade tip carves grooves in the composition so as to create a customized seal for the turbine blade tip.
摘要翻译：提供了一种陶瓷组合物，用于燃气轮机的由陶瓷基复合材料制成的绝缘部件。该组合物包括多个尺寸为多个中空氧化物基球体，磷酸盐粘合剂和至少一种氧化物填料粉末，由此磷酸盐粘合剂部分地填充球体和填料粉末之间的间隙。球体位于磷酸盐粘合剂和填料粉末中，使得每个球体与至少一个其它球体接触，并且球体的排列使得组合物在约1600℃的温度下尺寸稳定和化学稳定。提供了一种燃气轮机的固定叶片，其包括结合到叶片的外表面的本发明的组合物。提供了包含结合到燃烧器的内表面的组合物的燃烧器。提供了一种过渡管，其包括结合到过渡的内表面的绝缘涂层。由于组合物的耐磨特性，还提供了包含该组合物的燃气轮机叶片尖端密封件。组合物结合到护罩的内表面，使得叶片尖端在组合物中雕刻凹槽，以便为涡轮叶片尖端产生定制的密封。

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